function maj_envoi(mai_id, con_id){
	var count = Math.random();
    bool = 'FALSE';
    if (document.getElementById('contact'+con_id).checked==1){
		bool='TRUE';
	}
	xhr = getXMLHTTP();
	if (xhr)  {     
		xhr.open("GET", 'ajax/mai_liste.php?mai_id='+mai_id+'&con_id='+con_id+'&bool='+bool+'&count='+count, false); //open url using get method
		xhr.send(null);
	}
}
